© 2013 Fairchild Semiconductor Corporation
6
FEBFDMQ8203_90W • Rev. 1.0.1
4.
Setup and Test Procedure
Table 3. Test Point Descriptions
Test Point
Label
Descriptions
J6
AUX+
Measurement test point for positive AUX input voltage
J7
AUX-
Measurement test point for negative AUX input voltage
J8
VIN+
Measurement test point for rectified positive input voltage
J9
VIN-
Measurement test point for input voltage return
J10
+VOUT
Measurement test point for output voltage
J11
-VOUT
Measurement test point for output voltage return
4.1.
Hardware Connector Description
The evaluation kit is fully assembled and tested. Follow the steps below to verify board
operation.
1.
Use one of the following methods to power the evaluation kit:
If network connectivity is required:
Connect a network cable from the evaluation kit input port RJ45 connector to the
corresponding PSE Ethernet LAN connection, which provides power to the
evaluation kit such as PoE++ or four-fair architecture.
If network connectivity is not required:
Connect a -48 V DC power supply between the TXCT and RXCT; and
Connect a -48 V DC power supply between the MID+ and MID- together.
Caution: Do not turn on the power supply until all connections are completed.
2.
Activate the PSE power supply or turn on the external DC power supply.
3.
Using a voltmeter, verify that the evaluation kit pr3.3 V across the
+VOUT and –VOUT pins. –VOUT is isolated from the evaluation kit’s input
VIN- and AUX- pins.
Figure 4. Test Setup
